A panel of the trade body said China maintained a monopoly on yuan-denominated payment cards which breaks WTO rules.

Only one company, China UnionPay, is allowed to process domestic currency transactions. This limits foreign providers such as Visa and Mastercard.

Prices in the UK are rising at their slowest rate since the end of 2009, official figures have shown.

The annual inflation rate as measured by the Consumer Prices Index fell to 2.4% in June, from 2.8% in May, the Office for National Statistics said.

The rate of inflation, which indicates how fast prices are rising compared with a year earlier, is slowing due to lower food, fuel and clothing prices.

In our latest Business Daily podcast, we look at the questions being asked about other markets where traders have a say in fixing prices. Lesley Curwen hears about the incentives and conflicts of interest which might lead traders to manipulate the figures they submit.